module.exports.index = (req, res) =>　{
    res.render('index.html', { title: '首页' });
};
module.exports.about = (req, res) => {
    res.render('about.html',{ title: '关于我们' });
}
module.exports.music = (req, res) => {
    res.render('music.html', { title: '音乐欣赏' });
}